The Wicked The Amazing World of Gumball : Season 4 Episode 18

After being framed for feeding coffee- and prune juice-laced nuts to the squirrels, Darwin tries to prove to Gumball that Mr. Robinson's wife, Margaret, is a good person underneath her destructive, sociopathic tendencies, but when Darwin sees just how evil Margaret is, the duo decide to catch her committing grand theft auto.